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Auto Cell Balancing in LTC6813-1

Thread Summary

The user inquired about the auto cell balancing feature in the LTC6813-1, specifically if the IC can start balancing when a cell voltage threshold is reached. The final answer confirms that the LTC6813-1 does not have an inherent feature to start balancing based on a voltage threshold, but it can stop balancing if a cell hits an under-voltage threshold during the Extended Balancing state. The Discharge Timer Monitor section in the datasheet provides more details.
AI Generated Content
Category: Hardware
Product Number: LTC6813

Hi...

I'm using LTC6813-1 in my application. I would like to test the chip for cell balancing. I'd like to know if there is any auto cell balancing feature available in LTC6813-1 wherein the cell voltage threshold is set & upon reaching that threshold, the IC starts cell balancing. 

The same can be implemented after integrating with a BMS but I'd like to know if there's a feature inherent to LTC6813-1.

TIA...

Prahaladh S

Edit Notes

Moved & added tag.
[edited by: emassa at 1:53 PM (GMT -4) on 2 Jun 2023]
  • The same can be implemented after integrating with a BMS but I'd like to know if there's a feature inherent to LTC6813-1.

    Yes, this is the only way to enable the DCC bitfields in the configuration register.

    wherein the cell voltage threshold is set & upon reaching that threshold, the IC starts cell balancing.

    No, the converse is possible with the Extended Balancing state where the cell balancing will automatically stop if a UV Threshold is hit for a Cell that is undergoing balancing. Please refer Discharge Timer Monitor section in the datasheet for more information.

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